Average of 25,50,75,100 is MCQ with Answer and Explanation

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Average of 25,50,75,100 is

A. 65

B. 70

C. 60

D. 62.5

Answer: Option D

Solution (By JKSSB Mock Tests)

250/4=62.5.

This question belongs to: Maths Average

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Question #1

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Average of 6 numbers 45. If average of 4 is 40, average of remaining 2?

A. 52.5

B. 50

C. 55

D. 60

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Correct Answer: Option C

Explanation:
Sum6=270. Sum4=160. Remaining=110. Average=55.

This question belongs to: Maths Average

Question #2

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Average speed for 3 equal distances at 20,30,60 km/h?

A. 36.67

B. 33.33

C. 30 km/h

D. 40

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Correct Answer: Option C

Explanation:
3d / (d/20 +d/30 +d/60) =3 / (0.05+0.0333+0.0167) =3/0.1 =30.

This question belongs to: Maths Average

Question #3

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Average of 12 numbers 38. If average of 9 is 35, average of remaining 3?

A. 50

B. 45

C. 48

D. 47

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Correct Answer: Option D

Explanation:
Sum12=456. Sum9=315. Remaining=141. Average=47.

This question belongs to: Maths Average

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